Music-roll.



No;718,256. I PATBNTED JAN. 13. 1903.

G. B. KELLY.

MUSIC ROLL. APPLICATION 11.51) we. 15, 19'02.

no MODEL.

UNITED STATES PATENT OFFICE.

GEORGE BRADFORD KELLY, OF JAMAICA PLAIN, MASSACHUSETTS, ASSIGNOR TO THE AEOLIAN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF CONNECTICUT.

MUSIC-ROLL.

f SPECIFICATION forming part of Letters Patent N 0.? 18,256, dated January 13, 1903.

Application filed August 15,1902. Serial No- 119,'790. (N model.)

To all whom it may concern:

Be it known that I, GEORGE BRADFORD KELLY, a citizen of the United States, residing at Jamaica Plain, in the Commonwealth of Massachusetts, haveinvented certain new and useful Improvements in Music-Rolls, of

which the following is a specification, accomin varying forms, and therefore without limpanied by drawings.

My invention relates to music-rolls; and its [0 object is toimprove upon the means heretofore devised for locking the music-roll to the rotating parts in a mechanical musical instrument.

To this end myinvention consists of a music-roll for carrying out the above object constructed substantially as hereinafter fully described and shown in this specification and accompanying drawings, in which- Figure 1 is a side view of a rotary shaft of a mechanical musical instrument. Fig. 2 is a side View, partly in section, of a musicroll embodying my invention. Fig, 3 is an end View of the shaft, and Fig. 4 is an end View of the music-roll.

Referring to the drawings, the shaft A may be provided with any suitable means for rotating it, as the pulley B, while the musicroll 0 is adapted to be locked tothe shaft and centered thereon in order that it may rotate with the shaft. A locking device is provided on one, adapted to cooperate with the other, as shown, in this instance the shaft A being provided with a pin D, adapted to a recess E in the end of the music-roll. Means are also 5 provided for centering the roll on the shaft,

one having a central recess in the end thereof and the other having a projection or reduced end, as shown in the drawings, the shaft A being provided with a reduced end F, adapted toa central recess G in the end of the roll.

In order to secure durability of the device, an annular plate H is secured at the end of the music-roll around the end of the recess G and, as shown, embedded in the roll on which plate the recess E is provided, to which the pin D is adapted.

It will be seen that by inserting the end F and pin D in the recesses in the music-roll the roll will be locked to rotate with the shaft.

Obviously my invention may be embodied ing myself to the construction shown and described nor enumerating equivalents,

I claim, and desire to obtain by Letters Patent, the following:

1. The combination of a music-roll and a shaft, one being provided with a recess and the other with a locking-pin adapted to said recess, the shaft having a reduced end ad apted to a central recess in the end of the roll, whereby the shaft and rollmay be locked to rotate together, substantially as set forth.

2. The combination of a music-roll provided with recesses in the end thereof, and a shaft provided with a reduced end and a locking device, said reduced end and locking device being adapted to said recessin the music-roll, whereby the shaft and roll may be locked to rotate together, substantially as set forth.

3. The combination of a music-roll provided with a central recess in its end, an annular recessed plate embedded in the end of the roll about the mouth of said central recess, and a shaft having a reduced end adapted to the central recess in the roll, said shaft being provided with a pin adapted to the recess in said annular plate, whereby the shaft and roll may be locked to rotate together, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

GEORGE BRADFORD KELLY.

Witnesses:

JOHN C. SCHAEFFER,

JOSEPH F. MEADE. 

